Detailed explanation of the integration steps of ActiveJ: RPC framework and Java class library

ActiveJ is a high -performance RPC framework based on Java, which provides seamless integration with the Java library.This article will introduce the integration steps of ActiveJ and Java class libraries in detail, and provide relevant Java code examples. Step 1: Introduce the ActiveJ library First, we need to introduce the ActiveJ library in the project.ActiveJ can be added to the project through building tools such as Maven or Gradle.The following is an example code that ActiveJ dependencies are added to the Maven project: <dependency> <groupId>org.activej</groupId> <artifactId>activej</artifactId> <version>5.0.0</version> </dependency> Step 2: Create a service interface Next, we need to define the interface of the RPC service.This interface will contain a method we want to call remotely.The following is an example of the RPC service interface code: public interface CalculatorService { int add(int a, int b); int subtract(int a, int b); int multiply(int a, int b); int divide(int a, int b); } Step 3: Implement the service interface Next, we need to create the implementation of the service interface.These implementation classes will include actual business logic code.The following is an example of the service interface implementation code: public class CalculatorServiceImpl implements CalculatorService { @Override public int add(int a, int b) { return a + b; } @Override public int subtract(int a, int b) { return a - b; } @Override public int multiply(int a, int b) { return a * b; } @Override public int divide(int a, int b) { return a / b; } } Step 4: Release service In ActiveJ, we can use the `RPCSERVER` to publish our services.The following is a sample code for the `CalculatorserviceIMPL` service: Eventloop eventloop = Eventloop.create().withCurrentThread(); RpcServer rpcServer = RpcServer.create(eventloop) .withHandler(CalculatorService.class, new CalculatorServiceImpl()) .withListenPort(8080); eventloop.run(); Step 5: Create a client Finally, we need to create a remote service for a RPC client.The following is an example of the RPC client code: Eventloop eventloop = Eventloop.create().withCurrentThread(); RpcClient rpcClient = RpcClient.create(eventloop) .withStrategy(RPC_CLIENT_CONNECT_TIMEOUT, Duration.ofSeconds(10)) .withStrategy(RPC_CLIENT_RECONNECT, ReconnectStrategy.exponentialBackoff(Duration.ofMillis(100), Duration.ofSeconds(10), 2.0)) .withSerializer(MessageSerializerBuilder.create(eventloop).withRegistry(registry -> registry.register(CalculatorService.class, CalculatorServiceImpl.class)).build()); Promise<CalculatorService> servicePromise = rpcClient.connect(new InetSocketAddress("localhost", 8080), CalculatorService.class); servicePromise.whenComplete((service, exception) -> { if (exception != null) { System.err.println("Failed to connect to server: " + exception.getMessage()); return; } // Call the remote service method int result = service.add(4, 5); System.out.println("Result: " + result); }); eventloop.run(); Through the above steps, we successfully integrated the ActiveJ RPC framework and the Java class library, and used the RPC client to call for remote services.I hope this article will help you understand the integration steps of ActiveJ's RPC framework and Java class library.